It’s a Malaysian I expect, you can remove them by hand, put a bit of cucumber in the tank after lights out and they will collect on it. Usually if they are very numerous it means there is a lot for them to eat, so maybe you are overfeeding the fish.. I didn’t think they ate plants but I could be wrong about that, have never known them to do so in my tanks. I have always had them in my tanks, they are useful for keeping the substrate clean and turned over, their numbers are limited by the food supply. Don’t know if that helps but any time I have too many snails or the wrong type I just net them out when I see them.